Half-Life turns 25 years old tomorrow, with new maps and updates to celebrate. Valve also reunited the game's original developers for an hour-long making-of documentary in which its original programmers and artists reminisce about creating the first-person classic at a time when many of them had never shipped a game before.
Chief among the revelations within is that all of Half-Life's textures were created by a single person, Karen Laur.
